She was friends with Princess Celestia. She was the youngest engineering graduate in Canterlot history. She had a future. But things will end badly when Factory Sense, Equestria's best robotics expert, loses everything, including her sanity.

With Sombra threatening pony and changeling alike, Chrysalis and Celestia begrudgingly agree to an alliance. Neither is happy at first. Yet, as they work together, they discover lasting peace, and perhaps more, is possible.

==Originally written spring 2011== Equestria Daily Post==GLaDOS is free of Chell, free to continue testing, when she discovers a portal gun Wheatley tried to repair with duct tape. When the portal gun catastrophically fails, the enrichment center, GLaDOS, and Chell are literally dropped in the middle of Equestria. The mute test subject soon finds the world of ponies far more welcoming than the human world. But GLaDOS sees possibilities. Let the testing begin... for science.

Oh hey look! I love this one! What a great excuse to reread it!By the way, the cover art is awesome. I don't remember seeing it the first time around, even though I read it at least four or five months after it was published (I think). So I guess it's new for FiMfic?

This story was very well-done, I especially liked the added challenge of GLaDOS being given a "body" to use in a true boss fight (and just like a true boss fight, the friend you brought along was almost useless!).